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PHP 锟斤拷锟斤拷锟斤拷锟斤拷锟节达拷锟斤拷 HTML 锟斤拷锟斤拷锟� 锟斤拷也锟斤拷锟皆达拷锟斤拷锟酵达拷锟斤拷锟斤拷锟� GIF锟斤拷 PNG锟斤拷 JPEG锟斤拷 WBMP 锟皆硷拷 XPM 锟斤拷锟节的讹拷锟街革拷式锟斤拷图锟斤拷锟斤拷锟接凤拷锟斤拷锟斤拷牵锟絇HP 锟斤拷锟斤拷直锟接斤拷图锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷 PHP 锟斤拷使锟斤拷图锟斤拷锟斤拷锟杰ｏ拷锟斤拷锟斤拷要锟斤拷锟斤拷 GD 锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷 PHP锟斤拷 GD 锟斤拷锟� PHP 锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟侥库，锟斤拷取锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟酵硷拷锟斤拷式锟斤拷

锟斤拷锟斤拷锟绞癸拷锟� PHP 锟叫碉拷图锟斤拷锟斤拷锟斤拷锟斤拷取锟斤拷锟叫革拷式图锟斤拷拇锟叫★拷锟� JPEG锟斤拷 GIF锟斤拷 PNG锟斤拷 SWF锟斤拷 TIFF 锟斤拷 JPEG2000锟斤拷

锟斤拷锟斤拷锟斤拷锟� exif 锟斤拷展一锟斤拷使锟矫ｏ拷锟斤拷锟斤拷圆锟斤拷锟斤拷娲拷锟� JPEG 锟斤拷 TIFF 图锟斤拷锟侥硷拷头锟斤拷锟斤拷锟斤拷息锟斤拷锟斤拷锟斤拷锟酵就匡拷锟皆伙拷取锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆拷锟斤拷荨锟� exif 锟斤拷氐暮锟斤拷锟斤拷锟斤拷锟揭� GD 锟斤拷锟斤拷锟绞癸拷谩锟�

Note: 锟斤拷锟斤拷锟斤拷锟斤拷锟秸雇硷拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷取锟斤拷写锟斤拷锟皆硷拷锟睫改ｏ拷锟斤拷慰锟�"锟斤拷锟斤拷"一锟节★拷要锟斤拷锟饺★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟酵计拷锟皆拷锟斤拷荩锟� 锟斤拷锟斤拷要锟斤拷锟斤拷锟结到锟斤拷 exif 锟斤拷展锟斤拷

Note: getimagesize() 锟斤拷锟斤拷锟斤拷锟斤拷要 GD 锟斤拷展锟解。

Caution

锟斤拷锟节绑定碉拷 GD 锟斤拷使锟斤拷 Zend 锟节达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟节存，锟斤拷锟斤拷锟斤拷使锟矫碉拷锟节达拷锟叫★拷锟斤拷锟� memory_limit 锟斤拷锟矫诧拷锟斤拷锟斤拷锟狡★拷

GD 锟斤拷支锟街讹拷锟斤拷图锟斤拷锟绞斤拷锟� 锟铰憋拷锟斤拷锟叫碉拷锟斤拷 GD 锟斤拷支锟街的革拷式锟斤拷锟斤拷注锟解备图锟斤拷锟绞斤拷锟接︼拷亩锟饺�/写锟斤拷支锟街的匡拷锟斤拷锟皆★拷

**GD 锟斤拷支锟街的革拷式**
锟斤拷式	支锟街讹拷取	支锟斤拷写锟斤拷	锟斤拷注
JPEG	`TRUE`	`TRUE`
PNG	`TRUE`	`TRUE`
GIF	`TRUE`	`TRUE`	锟斤拷 GD 2.0.28 锟斤拷 PHP 5.0.1 锟斤拷始支锟斤拷
XBM	`TRUE`	`TRUE`
XPM	`TRUE`	`FALSE`	锟斤拷 Windows 平台锟较ｏ拷锟斤拷 PHP 5.3.19 锟斤拷始支锟街讹拷取锟斤拷
WBMP	`TRUE`	`TRUE`
WebP	`TRUE`	`TRUE`	PHP 5.5+
BMP	`TRUE`	`TRUE`	锟斤拷 GD 2.1.0 锟斤拷 PHP 7.2.0 锟斤拷始支锟斤拷

锟斤拷锟脚猴拷锟斤拷锟角ｏ拷锟斤拷然锟较憋拷锟斤拷锟斤拷示锟襟部凤拷图锟斤拷锟绞斤拷锟斤拷锟街э拷侄锟饺★拷锟叫达拷锟侥ｏ拷锟斤拷锟角诧拷锟斤拷锟斤拷锟斤拷锟� PHP 锟斤拷锟斤拷锟节憋拷锟斤拷锟绞憋拷锟斤拷锟街э拷锟斤拷锟叫╋拷锟斤拷锟斤拷摹锟� 要锟斤拷锟斤拷 GD 锟斤拷锟斤拷支锟街的革拷式锟斤拷锟斤拷使锟斤拷 gd_info() 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷息锟斤拷慰锟� "锟斤拷装" 一锟铰★拷